Great pictures! and banana and cream is a great choice of filling!
It seems you can make pancakes with anything as long as you have eggs. I use coconut flour alot, and recently discovered using cream or cocnutmilk. Now you show me sweet potato! Nice, I guess theres such a thing as potato flour I also spotted the link on the blog today about using ground pork rind as a flour! Awesome... if you can be bothered to go to the effort